Quote Originally Posted by Giomen View Post
On Zumo 660 only gmapsup1.img is available in addition on new SW what support 2 map on SD. No gmapsup2.img is on Garmin device!
I believe Caty's post #1 is still correct and I didn't think gmapsup1.img was made available on sd card by any recent fw, and so still only gmasupp.img in sd Garmin folder for zumos including 660.

@Beddhist
Easy way to check what map name/paths are available, look at your Inventory page and compare to what's posted by fiat_lux for his 550 in the post above yours to get the correct map naming conventions. If gmapsup2.img doesn't work, try gmapprom1.img.